FWIW CompOrnGT( Pumpkin part fo Evil Pumpkin Racing) has a forged bottom, stage 2 heads, blower cam and is running 10 lbs of boost with a SQ, tuned by Steeda CA and made 530 to the wheels. Modular Depot(ohio) ro Modular Powerhouse(Georgia) are th eway to go, althogh Steeda CA(Toronto) is pretty good too.